Hedging Activities - Schedule of Fair Value of Derivatives (Details) - Derivatives designated for hedge accounting - USD ($) $ in Millions	Dec. 31, 2024	Mar. 31, 2024
Derivatives, Fair Value [Line Items]
Asset	$ 58	$ 121
Liability	33	36
Cross-currency swaps | Prepaid expenses and other/Other accrued liabilities
Derivatives, Fair Value [Line Items]
Asset	25	13
Liability	0	1
U.S. Dollar notional amount, asset	595	1,122
Cross-currency swaps | Other non-current assets/liabilities
Derivatives, Fair Value [Line Items]
Asset	32	108
Liability	5	0
U.S. Dollar notional amount, asset	3,477	1,638
Interest Rate Swap | Other non-current assets/liabilities
Derivatives, Fair Value [Line Items]
Asset	0	0
Liability	28	35
U.S. Dollar notional amount, asset	750	1,250
Foreign currency forwards | Prepaid expenses and other/Other accrued liabilities
Derivatives, Fair Value [Line Items]
Asset	1	0
Liability	0	0
U.S. Dollar, notional amount, liability	24	35
Foreign currency forwards | Other non-current assets
Derivatives, Fair Value [Line Items]
Asset	0	0
Liability	0	0
U.S. Dollar, notional amount, liability	$ 0	$ 15